CalcArcade.

Area Converter

Enter an area, choose the unit it is in and the unit you want. You get the converted area and a table of the same area in every unit.

Your numbers

Result

How we calculate it

Every area is turned into square meters and then into the unit you want. Square units come from the length definitions: 1 square foot = 0.3048² m² = 0.09290304 m², and 1 square yard is 9 square feet. An acre is 4,840 square yards, so 1 acre = 4,046.8564224 m². A square mile is 640 acres and a hectare is 10,000 m².

So 1 acre is 43,560 square feet and about 0.4047 hectares. Results are shown to 12 significant digits.

Assumptions and limits

  • These are international units. The US survey acre, based on the survey foot, is very slightly larger and is not included.
  • An area unit is the length unit squared, so doubling a length makes the area four times bigger. 1 square meter is about 10.76 square feet and not 3.28.
  • Use the area calculator to find the area of a shape first, then convert it here.

Frequently asked questions

How many square feet are in an acre?

There are 43,560 square feet in an acre, which is 4,840 square yards or about 0.4047 hectares.

How do I convert square meters to square feet?

Multiply by 10.7639104167. A 20 square meter room is about 215.3 square feet.

How big is a hectare?

A hectare is 10,000 square meters, a square 100 meters on each side. It is about 2.471 acres.

Related calculators

Worked example (a fixed example using the starting numbers, it does not change as you type)

Inputs: Value to convert = 1; From = acre (acre); To = square meter (m²).

  • Result 4,046.8564224 m²
  • Conversion 1 acre = 4,046.8564224 m²

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Last reviewed: . Formulas and assumptions are described on our methodology page. For information only; not professional advice.